Can you answer this for me? It's another Trump question.

When ever the news shows Trump on the white house lawn talking to reporters there is always the noise of his helicopter in full rev just before lift off.
Except a few times accidentally or on purpose they showed his chopper sitting there totally shut down, but the chopper noise was still there, is there a second chopper?
Or do they pipe the noise in so he can claim he didn’t hear the reporter if he didn’t like the question?
If there is a second chopper they never have showed it on any news channel I have watched.